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Is it even an Amazon Prime Day without restocking your go-bag or backcountry kit? Water filtration is always top of mind, and Outdoor Life has done the in-depth testing and analysis to show you what the best water filter is for your needs and situation. We’ve rounded up the best deals based on our findings here.

If you are looking for simplicity, then Aquatabs are it. They are effective against bacteria, protozoa, and viruses.

The Grayl is an all-in-one filter. Just put your water inside the main bottle, put the filter on top (think French press) and push. It’s effective against bacteria, protozoa, and viruses.

This ceramic filter was impressive performer during testing, and was much easier to clean than comparable pump filter models. If you need a filter that will perform for many, many liters of water, this one is a great bet. It’s effective against bacteria and protozoa.

It has many (many) imitators, but there is only one Lifestraw. Per usual, it can be found heavily discounted during this Amazon Prime Day. I’ll level with you: based on experience, this isn’t my first choice for a water filter in any situation, but it is very affordable. If you’re looking for the LifeStraw guarantee (they are one of the top water filtration companies in the world) but are looking to upgrade to something that’s easier to drink from, check out this product instead: